Meat-cutter



(No Model.)

O. P. MOSHER.

MEAT CUTTER.

No. 593,94. Patented Nov. 16, 1897.

NITED STATES PATENT FFicE.

M EAT-CUTTER.

SPECIFICATION forming part of Letters Patent No. 593,948, dated November 16, 1897.

Application filed March 17, 1897. Serial No. 628,017. (No model.)

of the invention, such as will enable others skilled in the art to which'it pertains to make and use it, reference beinghad to the accompanying drawings, which form part of this specification.

My invention relates to. improvements in meat-cutters, and it pertains to that class of meat-cutters'involving a cylinder having a hopper, a screw-shaft for feeding the material, and a cutter situated at the exit end of the cylinder.

The primary object of my present invention is to have the ends of the feed-ribs form cutters and to provide a fiat or wheel cutter-disk, with peripheral recesses extending inward a distance practically equal to the depth of the ribs, forming projecting blades coacting with the ends of the ribs, whereby, first, the material acted upon is fed in a direct line from the feed-ribs to the said recesses or blades, making the machine work very easy and completely clear the cylinder; secondly, it enables the sharpening of the cutting edges of the blades with an ordinary file, and, .thirdly, the production is facilitated and cheapened.

Another object of my invention is to provide a cheap way of providing a steel cuttingsurface at the ends of the ribs.

Another object of my present invention is to have the outer end of the feed-shaft to which the cutter-disk is attached of suincient diameter to practically cover the whole inner surface of the cutter-diskinside the recesses forming the cutter-blades, whereby all end thrust of the material against the cutterdisk is prevented, reducing the friction of the cutter in operation, and causing all the material to be fed directly between the blades of the cutter, which is found to greatly reduce the power required to drive the shaft and cutter as compared with machines having cutterdisks against the inner side of which the material is forced by the feet or lead and as compared to the machines in common use, which effect a lateral forcing or feeding of the material from the ribs to the cutter. Owing to this construction I am enabled to have the feed-ribs of the cylinder at a considerable less pitch than in the machines now in use, which also aids very materially in reducing the power required to operate the machine.

In the accompanying drawings, Figure 1 is a vertical sectional view of a cutter embodying my invention, taken longitudinally the cylinder. Fig. 2 is an enlarged detached perspective view of the cutter-disk. Fig. 3 is an enlarged edge view of a portion of the cutterdisk and its carrying-shaft. Fig. 4 is an enlarged perspective View of a portion of the interior of the outer end of the cylinder.

Referring now to the drawings, A indicates the usual cylinder, having at its inlet end the usual hopper B, through which the material to be out is fed into the cylinder.

D is the screw or feed shaft, which forces the material to the exit and cutting end of the cylinder.

The cylinder isprovidedon its inner side with the usual spiral ribs a. In my construction, however, the ends of the ribs are cut to form a cutting edge d. The cutting edges or ends of the ribsare all ma circular plane formedat right angles to the cylinder near its outer end. Formed in the end of the cylinder and flush with the cutting ends of the ribs is a seat I) for the cutter-disk G. This cutter-disk is secured to the end of the screw or feed shaft D and rests against the said seat and is provided with radially-extendin g cutter-blades e of a length not exceeding the combined thickness of the ribs and the seat I), but preferably of a length slightly less, so

that meat or other material cannot escape without first being sheared between said outter-blades and the ends of the ribs. These blades are formed or turned at an angle, as clearly shown in Figs. 2 and 3, to form cutting edges extending in the direction of rotation, as illustrated by arrow in Fig. 2. By this construction it will be seen that the machine is very simple and that the spaces between the cutter-blades of the cutter-disk for receiving the material fed by the screw-shaft and spiral ribs are between the spaces between the ends of the ribs and right in the direct line of a straight feed, which offers no impediment whatever to the feed of the material to the cutter, making anexceedingly free-acting and efficient machine, while at the same time the ends of the ribs themselves are utilized as cutters.

I am aware that the ends of the ribs have been straightened and a disk coacts therewith for cutting the material; but in this case the sides of the ribs are used, and the cutting portion of the disk is approximately longitudinal the cylinder, which does not aiford a cutter receiving the material from a direct thrust of the feeder.

I am also aware that a flat disk having a series of cutting-openings have been provided; but in this instance each opening or cutter does not extend from the outer to the inner edge of the ribs, so that a considerable space or surface of the disk is subjected to the end thrust of the material, making it hard to work. The cutters cannot be sharpened with a file, which is a very desirable feature in a household article, and it is expensive to produce. Cutter-disks of the form here shown can be formed in gangs, as hereinafter specified.

The operating screw-shat t which carries the cutter revolves in the direction of the spiral of the ribs, thus causing the cutter-disk to do the same, and this relative revolution to the spiral of the ribs causes a drawing action by the blades of the cutter in the direction of feed, which facilitates the feed and I find will draw all of the material from within the cylinder, leaving it practically clear, for there are no straight or other portions of the ribs or other impediments or corners or nooks in which the material can catch, and this result is considered very desirable in cutters of this type.

\Vhile I here show and much prefer the spiral ribs for the reasons stated, yet it will be readily understood that straight ribs can have their ends shaped, as stated, to coact with a cutter-disk which extends across the ends of the cylinder at right angles thereto and having peripheral cutters and the simplicity of the machine maintained.

Should it be desired to provide steel cutting edges for the ends of the ribs instead of using the cast ribs themselves, I place steel pins through the cylinder at the ends of the ribs and'mill them down, so that they form a cutting edge, as shown at i in Fig. 4.

The cutter here shown and described is exceedingly cheap to manufacture, in that the ordinary cylinder with the ribs is cast and then the end of the cylinder milled out to form the seat I), which milling action also cuts the ends of the ribs flush with the seat and forms the cutting-surfaces (Z, as will be readily understood, and as the cutter-disk is formed of a flat disk or wheel with peripheral cutters a series of these disks are held together and spirally milled, which will form the peripheral cutters with their cutting edges in the direction of rotation and the machine thus made very cheap as well as efiicicnt.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. The combination of a substantially cylindrical casing formed with internal spiral feed-ribs terminating abruptly in a plane at right angles to the axis of the cylinder and forming sharp cutting edges; a feed-screw terminating in the same plane as the feedribs; and a cutter-disk secured thereto and having blades formed by recesses in the periphery presenting cutting edges of practically the same depth as the ribs and coacting therewith to shear the material; whereby a minimum deflection of the material from the lines of its progression is effected.

2. The combination of a substantially cylindrical casing formed with internal spiral ribs terminating abruptly in a plane at right angles to the axis of the cylinder and forming sharp cutting edges; a feed-screw terminating in the same plane as the feed-ribs; and a cutter-disk secured thereto and having its blades formed by recesses in its periphery presenting cutting edges extending practically to the periphery of the feed-screw and coacting with the feed-ribs; whereby a minimum deflection of the material from the lines of progression is effected.

3. In a cutter of the type described, a cylinder having ribs at its inner side, cutter-pins extending radially and transversely through the cylinder at the outer ends of the ribs, the pins having their outer sides flattened or cut away in a plane at right angles to axis of the cylinder for the purpose described.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES PIIILO MOSIIER.

Witnesses:

ERVVIN L. FIsH, HIRAM G. Mon. 

